Augustine of Hippo, on Luke 15:11

“And he said: A certain man had two sons:”

“(ubi sup.) One of the citizens of that country was a certain prince of the air belonging to the army of the devil, whose fields signify the manner of his power, concerning which it follows, And he sent him into the field to feed swine. The swine are the unclean spirits which are under him.”

Imported from an open dataset — not yet checked against the printed edition.